英语词汇sec 15怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	sec 15
释义	Examples: secant (of angle), written sec θ— 正割 US Securities and Exchange Commission (SEC)— 证交会 • 安全与交换委员会 • 美国证券交易委员会
随便看	expansionist policy expansion joint expansion jointing expansion joints for road bridges expansion kit expansion knowledge expansion land expansion loop expansion matrix expansion measures expansion mechanism expansion memory expansion mode expansion needs expansion of a business expansion of a company expansion of activities expansion of a gas expansion of applications expansion of balance sheet expansion of biofuels expansion of broadband expansion of business expansion of business activities expansion of business areas

英汉双解词典包含2273206条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。

secant (of angle), written sec θ—